enjoyment:rated 5 by 1 persondifficulty:rated 5 by 1 personemail service:Email me aboutnew comments and replays.comments:You'll need to know how to do a certain difficult trick (42).If you're not skilled at it, you won't get very far.Of course, you could practice and become a master at it... ;)norbert (2018-05-04 20:46:11 UTC)